Precise determination of the ηc mass and width in the radiative J/ψ → ηcγ decay

被引：7
|
作者：
Brambilla, Nora [1 ]
Roig, Pablo [2 ]
Vairo, Antonio [1 ]
机构：
[1] Tech Univ Munich, Dept Phys, James Franck Str 1, D-85748 Garching, Germany
[2] Univ Paris 11, CNRS, Lab Phys Theor, UMR 8627, F-91405 Orsay, France
来源：
IX INTERNATIONAL CONFERENCE ON QUARK CONFINEMENT AND THE HADRON SPECTRUM (QCHS IX) | 2011年 / 1343卷
关键词：
Radiative decays of charmonia; quarkonia; non-relativistic effective-field theories; QCD; ORTHOPOSITRONIUM DECAY; HEAVY QUARKONIUM; SPECTRUM; NRQCD;
D O I：
10.1063/1.3575048
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We present an effective field theory based extraction of the h c mass and width from a recent measurement by CLEO of the photon line shape in the J/psi -> eta(c)gamma decay.
引用
收藏
页码：418 / 420
页数：3
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